Steam-trap.



G. W. DE LANCEY.

STEAM TRAP. APPLICATION FILED APR. 16, I914.

Patented Aug. 17, 1915.

:OLUMBIA PLANOQRAPH C0,, WMmNmN. D. c.

llNllED STATE PATENT UhFllQlll.

GEORGE W. DE LANCEY, OF NEW YORK, N. Y.

STEAM-TRAP.

Specification of Letters Patent.

Patented Aug. 17, 1915.

To all whom it may concern Be it known that I, GEORGE W. DE Lancer, acitizen of the United States, residing in the borough of Brooklyn,county of Kings, city and State of Ne York, have invented new and usefulImprovements in Steam-Traps, of which the following is a' specification.

This invention relates to steam traps in which the level and thedischarge of the waters of condensation are controlled through an outletby a float controlled valve,

and it is the object of the invention to provide improved balanced valvemechanism for steam traps which is simple and cheap in construction,durable and eflicient in operation. lVith this object in view I providea suitable casing having an inlet and an opening in one side adapted tobe closed by a removable plate, said plate having a dis charge outlet. Avalve casing having a longitudinal bore has a centrally and laterallyprojecting screw threaded nipple to engage in the discharge outlet, saidnipple having an orifice or port communicating with the bore in thevalve casing. Rotatably mounted in. the bore of the valve casing is avalve plug having a longitudinal bore with which communicates atransverse port located substantially central of the plug and which portis adapted to be placed in communication with the outlet port in thevalve casing nipple and to which plug a float is suitably connected. lhevalve casing with the valve plug is located within the trap casing andis so constructed that the waters of condensation have entrance to thebore of the valve at opposite ends. A transverse port is also providedopposite to and in line with the outlet port of the valve plug so thatthe pressures of the water entering at opposite ends of the valve boreand passing out through the outlet port in the valve and valve casingwill be counterbalanced by the force of the water entering the othertransverse port and thereby balancing and permitting of the easyoperation of the valve.

In the drawing accompanying and forming a part of this specification,Figure 1 is a sectional side elevation of a steam trap illustrating anembodiment of my improved valve mechanism applied thereto. Fig. 2 is asectional plan view of an embodiment of my valve mechanism. Fig. 3 is asectional plan view of another embodiment of my valve mechanism; andFig. 4 is a cross sectional view taken on the line 11-13 of Fig. andlooking in the direction of the arrows.

Similar characters of reference designate like parts throughout thedifferent views of the drawing.

In the embodiment of my invention illustrated in the drawing, I haveshown the same in connection with a trap casing 5 of suitable shape andsize adapted to be supported upon feet 9 which may be integral therewithand having an inlet 6 and an opening 7 formed with a laterallyprojecting flange or wall 8 closed by a plate 10 removably secured bybolts 11 passing therethrough and engaging in the flange 8. The coverhas an outlet 12 for the discharge of the waters of condensation of thetrap. The level of the waters of condensation in and the dischargethereof from the trap casing is controlled through the outlet 12 byvalve mechanism (designated in a general way by V) controlled by a float13.

The embodiment of the valve mechanism shown in Fig. 2 of the drawingconsists of a valve casing 14 having a bore 15 extending longitudinallytherethrough and a. screw threaded nipple 1G projecting laterally andcentrally from the casing adapted to engage in the outlet 12, the nipplehaving an opening 17 communicating with the bore 15 of the casing.Rotatably mounted in the bore of the casing is a valve plug 18 having aflanged head to abut against one end of the casing, and the plug beingof such length as to project beyond the other end of the casing, acollar 19 on said projecting end abutting against the opposite end ofthe casing and secured thereto as by a set screw, said collarmaintaining the valve plug in position in the valve casing. A bore 20extends entirely through the valve plug and a transverse port 21communicates with the bore and is adapted to be placed in register withthe nipple opening 17. Fixed in the flange head of the valve plug is arod 22 to which is connected the float 13, as at 23. It will be notedthat the valve casing and valve is entirely within the trap casing andthat the waters of condensation have access or entrance to both ends ofthe bore 20. The pressures of the water in the valve bore 20 and port 21tend to force the valve plug to the side of the valve casing oppositethe port 21 tending to retard the operation or rotation of the valveplug by the float and to overcome and counterbalance the pressuresthrough the port 21 I provide the casing with a port 2& which is in linewith the nipple port 17.

In the embodiment of the invention shown in Figs. 3 and 4:, the valvecasing 14 has a pair of ports 25, 25 which are in line withsemi-circular annular recesses or grooves 26, 26. The bore 20 in thevalve 18 does not extend entirely through the same and the open end isclosed by a screw threaded plug 27. The valve plug also has circularannular recesses or grooves 28, 28 which are adapted to be in line withthe grooves 26,

ports 29 in the valve plug communicating with the annular recesses 26and 28 whereby the waters of condensation in the trap at all times haveaccess or entrance to the bore of the valve plug. A port 30communicating with the bore 20 is adapted to be placed in register withthe nipple port 17 as the float rises in the trap permitting of thedischarge of the water from the trap through the outlet 12. Tocounterbalance any pressures on the valve plug due to the pressure ofthe water through the port 30, I provide a second port 31 in the valveplug opposite to and in line with the port 30 thereby equalizing thepressures on the valve and permitting the easy operation thereof.

It will be obvious that by removing the plate 10 the valve mechanism andfloat will be removed with said plate thereby permitting ready'access tothe interior of the trap for cleaning or other purposes.

Having thus described my invention, I claim: 7 I

In a steam trap, the combination with a casing having a dischargeopening, of valve mechanism to control the discharge of the waters ofcondensation from the casing through said opening comprising a valvechamber having a bore extending longitudinally therethrough and having anipple extending laterally and centrally therefrom, said nipple havingan outlet passage communicating with the bore of the chamber, a port inthe valve chamber diametrically opposite to the outlet discharge in thenipple, a valve plug rotatably mounted in the bore of the valve chamberhaving a longitudinal bore with a transverse port located centrallythereof adapted to be placed in register with the nipple outlet of thevalve chamber, said valve plug having a shouldered end to abut againstone end of the valve chamber and being of such length so that the otherend extendsbeyond the end of the valve chamber, a collar fixed to saidprojecting end of the valve plug, and a float supporting stem fixed inthe valvev plug at one end of the valve chamber.

GEORGE IV. DE LANGEY. Witnesses:

PAULA PHILIPP, JOHN O. Smrnn'r.

Copies of this patent may be obtained 01 five cents each, by addressingthe Commissioner of Patents Washington, D. G.

